Guard.



D. D. OGILVIE.

GUARD.

APPLICATION FILED JULY 24, 1908.

922, 1 80. Patented May 18, 1909.

3 ATTORNEYS FHS NoRms PETERS cn., wAsmNcroN, o. c.

FFQE.

DAVID D. OGILVIE, OF LEE, NEVADA. y i

GUARD Application filed July 24,

To all whom it may concern;

Be it known that 1, Diivin D. OoiLvrE, a citizen oll the United States, and a resident ol' Lee, in the county ol' Elko and State o1A Nevada, have invented a new and improved Guard, .of which the following is a l'ull, clear, and exact description.

This invention is an improvement in guards such as are used on mowers, reapers, headers, and the like, and has in view a device of this character in which the ledger plates can be readily detached from the,I

guard, to he ground; and to provide for the continuous and gradual cutting of the grass, etc. instead of simultaneously cutting it in bunches, as is the usual practice, this latter manner oi' cutting causing considerable vibration and jerking and often breaking the knives. I attain these objects preferably by slidably mounting the ledger-plates in ways l'ormed in. the guard-fingers, and provide spring-actuated catches lor automatically locking the plates in place when moved to operative position. l also construct the ledger-plates of a wedge-shape or tapering l'orm, and likewise shape the knives of the cutter-bar.

Reference is to be had to the accompanying drawings forming a part ol this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 isa plan oi' a guard constructed in accordance with my invention; Fig. 2 is a section through the guard substantially on the line 2&2 of Fig. 1, parts being omitted; Fig. 3 is a cross-section on the line 3-3 oi' Fig. 2 F ig. is an inverted plan oi one of the ledger platesl F ig. 5 is an inverted plan ol' one of the guard-lingers, showing a slightly modiiied form of construction; Fig. 6 is a perspective view ol' a special tool i'or removing the guard-iingers from the guard ,z Fig. 7 is a fragmentary sectional view through the guaicl-i'inger shown in Fig. 5, and Fig. 8 is a section, similar to Fig. 3, of a modiiied form of the invention.

The guard embodies in its construction the usual finger-bar 10, to which a series of in gers 11 are detachably connected by bolts 12, the latter also passing through a guide-plate 13 and guide-clips 14. The fingers 11 present I the customary general forni, being hollow for the greater portion of their length and pro vided with rearwardlyedirected tapering or wedge-shaped guards 15 having barbed or notched opposite edges and out away or Specicaton of Letters Patent.

Patented May 18, 1909.

Yslotted, as indicated at 16, lor a purpose hereinafter made apparent. The intermeg diate portion oi each inger of the guard i slightlyr in advance of the finger-bar is conM l structed with a dovetailed way 17, as shown in Fig. 3, and running in the direction or' its length. ln these ways slidably fit dovetailed lugs or projections 18, rigid with the Serial No. 445,140.

plates also having a tapering or wedgeshaped form, and in the particular construction oi my invention shown in Figs. 1 and el, each plate has also attached on its under face in advance of the lug 18, a spring latch 20, the head of which is adapted to automatically engage over a projection 21 when the ledger-plate is moved to operative position. rhc projections 21 are formed on the inside of the iingers adjacent to apertures 22, which the heads of the spring latches overlie when in locking engagement. Apcrtures 23 are also formed through the ledger-plates, and extend through the lugs 18. Slidable on the ledger-plates are correspondingly-shaped knives 24 rigidl;T attached to a knife-bar 25 which is movable inthe slot between the nger-bar and ledger-plates, and retained therein by the guide-plate 13 and clips 14.

For moving the ledger-plates from the guard I provide a special tool, as shown in Fig. 6, the same consisting of a bar 26 having a portion or pin 27 at its inner end turned downwardly and of reduced diameter. To the bar is rigidly attached a cross-piece 2S journaled in the upper end of a stirrup 29, the latter having a pin 30 projecting upwardly from its base. By passing the pin 30 of the stirrup within the aperture 22 oi' one of the fingers, and the pin 27 in the aperture 23 of the corresponding ledger-plate, and then pulling up slightly on the handle end oi' the lever, the spring catch 2O will be disengaged, when the ledger-plate may be slid rearwardly from the finger by operating the outer end of the bar 26. The slots 16 of the guard receive the bar of the tool when the latter is applied.

In Figs. 5 and 7 I have shown a modified way of locking the ledger-plates in place, wherein, instead of connecting the spring latches directly with these plates, I secure the latches l 2Oa to the under side of the fingers at or near the bolts 12, and construct their heads in the `form of upwardly-projecting pins ot' sutilcient length to pass through the lingers and into the apertures 23 in the ledger-plates.

under face of the ledger-plates 19, these Fig. 8 discloses a form of my invention in which `the spring latch and lug of the guard plate are dispensed with, as also the way which receives the lug, and the ledgerplate is fastened by screws 2Gb.

In the operation of the guard, the grass or other growth being cut, passes in between the 'lingers where it is engaged by the barbs or notches in the edges of the guards, which prevent it l'rom being bent forwardly or Vpushed outwardly by the reciprocation of the claim as new and desire to secure by Letters' Patent:

. l. T he combination ol' a guard-linger, a ledger plate slidably connected with the ringer longitudinally thereof, and a spring-latch automatically locking the ledger-plate in operative position.

2. rl`he combination oiI a guard-'finger having a dove-tailed way Al'ormed therein longitudinally thereo'l', and provided with a guard, and a ledger-plate arranged under the guard, having a dove-tailed lug on its under Aface slidable in the way oi' the finger.

3. rihe combination of a guard-linger having an under-cut way, and a ledger-plate having a lug on its under face slid ably fitting within said way.

4. The combination of a guard-finger having an under-cut way arranged longitudi-V nally thereof a ledger-plate havinga projection on its under lace slidable in said way, and means for locking the finger and plate together when the plate is moved to operative position.

5. T he combination of a linger-bar having' guard-lingers secured thereto, each provided with a guard and a way, a ledger-plate slidable on each iinger under its guard and having a lug engaging in the way of the finger, and a spring latch automatically'locking the ledger-plate to the linger whenslid to operative position.

6. The combination oi' a finger-bar havingV guard-fingers secured thereto, each provided.

with a guard, a tapering ledger-plate slidably mounted on each ringer, spring latches for automatically locking each oi' the ledgerplates to their respective iingers when moved to operative position,

and a knife-barv having tapering` knives movable between the ledger-plates and guards.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses.

DAVID D. OGILVIE.

Vitnesses:

GARRETT J. ONEILL, ALEXANDER D. TABER. 

